Anyone know why it isnt accepting my cos(2x) ?

20 次查看（过去 30 天）
Alejandra Caballero
Alejandra Caballero 2020-10-22
回答： galang andaru ibnu tetuko 2021-7-24
x = -pi:2*pi;
f(x) = (cos(2.*x));
plot (f)

请先登录，再回答此问题。

采纳的回答

Ameer Hamza
Ameer Hamza 2020-10-22
x = -pi:2*pi;
f = cos(2.*x); % f(x) is wrong
plot(x, f)
  3 个评论
显示 1更早的评论
Stephen23
Stephen23 2020-10-22
编辑：Stephen23 2020-10-22
e is not a defined constant. Use exp(x) to calculate e^x
Most likely you will also need element-wise division here:
h = (x^2-x+3)./(x-8);
% ^^
unless you really are trying to solve systems of linear equations.
https://www.mathworks.com/help/matlab/matlab_prog/array-vs-matrix-operations.html

请先登录，再进行评论。

更多回答（1 个）

galang andaru ibnu tetuko
how to find max value and error of cos(2x)

类别

在 Help Center 和 File Exchange 中查找有关 MuPAD 的更多信息

标签

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by